1 . 已知函数
,
为偶函数,且当
时,
,记函数
,给出下列四个结论:
①当
时,
在区间
上单调递增;
②当
时,
是偶函数;
③当
时,
有3个零点;
④当
时,对任意
,都有
.
其中所有正确结论的序号是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fda5ab0495110870938c761638ae6ef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fed62208af6047cd1374c6db9d21e8c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a3bc841b0c96fada3e4f8ca5f1396f.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b917df0520097be222accbddf9394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c787b3ae93138bac7485c406d29f94b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5069fb2cd95b9595065b4294e308322.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bd2215e5cdeb3f6b0b7929a4a05ba65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c787b3ae93138bac7485c406d29f94b1.png)
③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3a915c1a8a9304aeb307d130faaeb15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c787b3ae93138bac7485c406d29f94b1.png)
④当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6163bf8b74410bfb93919ec5130795ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/078f88a148727f0bba99fde30d056d03.png)
其中所有正确结论的序号是
您最近一年使用:0次
2 . 已知
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77eb9decfc641e3d4b82b5c07de0fa24.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-01-25更新
|
410次组卷
|
2卷引用:北京市朝阳区2023-2024学年高一上学期期末质量检测数学试题
3 . 已知集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/879779123641388c50bc027caecfe331.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-01-25更新
|
309次组卷
|
3卷引用:北京市朝阳区2023-2024学年高一上学期期末质量检测数学试题
解题方法
4 . 设函数
,当
时,
的最大值为______ ;若
无最大值,则实数
的一个取值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf067013acfc1b55f2e146951148b6d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解题方法
5 . 已知函数
的图象是在
上连续不断的曲线,
在区间项
上单调递增,且满足
,
,则不等式
的解集为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac87434324956e4145e38ad92a1aa95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03db4ea1dcb63b22cf4e917df5db581e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3feaa9bfde5d535450a58bbe06d235ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2251188d681465013ed924a44510283e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7874f70183ad2de284b52a53bdd8b722.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
6 . 已知函数
的图象过原点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
__________ ;若对
,都有
,则m的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d8b49896060ea324734b45189520606.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e59703be42898c4aa7addcbd76a0bb.png)
您最近一年使用:0次
名校
解题方法
7 . 已知是函数
的一个零点,且
,则( )
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-01-20更新
|
190次组卷
|
2卷引用:北京市朝阳区2023-2024学年高一上学期期末质量检测数学试题
名校
8 . 已知集合
,其中
且
,非空集合
,记
为集合B中所有元素之和,并规定当
中只有一个元素
时,
.
(1)若
,写出所有可能的集合B;
(2)若
,且
是12的倍数,求集合B的个数;
(3)若
,证明:存在非空集合
,使得
是
的倍数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcbde10b7bc82536072ca38f32b2f8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cca1d86c9f078347773f700fee49d1d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe11d564517c04437b9884da859002b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75fd9ec9c065d4337a8b1ebf2abc6a1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9bc3a22bc9cb056df1e6d5218877c8c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b6e90ea92c80c31653e4ac972bf56c8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d725be6acff620b47bb7a8a7a0c6e5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75fd9ec9c065d4337a8b1ebf2abc6a1a.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8af5e68b8592c14157df8db05904c8d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75fd9ec9c065d4337a8b1ebf2abc6a1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2d51f9147b8265c0276c1f2c2659197.png)
您最近一年使用:0次
2024-01-20更新
|
324次组卷
|
2卷引用:北京市朝阳区2023-2024学年高一上学期期末质量检测数学试题
9 . 在一定通风条件下,某会议室内的二氧化碳浓度c随时间t(单位:
)的变化规律可以用函数模型
近似表达.在该通风条件下测得当
时此会议室内的二氧化碳浓度,如下表所示,用该模型推算当
时c的值约为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e008ee8b0dc593ce21d8d4c87afef1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8ddb814f83a6f0c734266dc73d015a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c32b6ffcdd8e21706cfe5df028f65a8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d106a430e7748a4d596401820b9abd8.png)
t | 0 | 5 | 10 |
c | ![]() | ![]() | ![]() |
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
10 . 设函数
.
(1)当
时,求
的值;
(2)判断
在区间
上的单调性,并用函数单调性的定义证明你的结论;
(3)当
时,
的最小值为3,求m的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9088a940f6c06449d4fed2d29d3b56dd.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74156327e5659301f391814605688899.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe86cace140f2c3588ab115837bbfc9e.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48350c9f896c18a64f27867ca81c9be2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
2024-01-20更新
|
220次组卷
|
2卷引用:北京市朝阳区2023-2024学年高一上学期期末质量检测数学试题